干旱区生态环境知识资源中心(Arid): Elucidating Amendment Resources for Reclaiming Efficacy of Sodic Soils around Abaya and Chamo Lakes, South Ethiopia Rift Valley

Arid

DOI	10.3390/toxics12040265
	Elucidating Amendment Resources for Reclaiming Efficacy of Sodic Soils around Abaya and Chamo Lakes, South Ethiopia Rift Valley
	Walche, Azmera; Haile, Wassie; Kiflu, Alemayehu; Tsegaye, Dereje
通讯作者	Walche, A
来源期刊	TOXICS
EISSN	2305-6304
出版年	2024
卷号	12 期号:4
英文摘要	Background: Sodic soils are harmful to agricultural and natural environments in Ethiopia's semi-arid and arid regions, leading to soil degradation and reduced productivity. This study investigated how amendment resources could help improve the chemical properties of sodic soils around the Abaya and Chamo Lakes in the South Ethiopia Rift Valley. Methods: A factorial experiment was conducted to study the effects of gypsum (GYP) and farmyard manure (FYM) on sodic soil reclamation. The experiment had four levels of GYP (0, 50, 100, and 150%) and four levels of FYM (0, 10, 20, and 30 tons ha-1), with three replications. The pots were incubated for three months and leached for one month, after which soil samples were collected and analyzed for chemical properties. ANOVA was performed to determine the optimal amendment level for sodic soil reclamation. Results: The study found that applying 10 ton FYM ha-1 and gypsum at 100% gypsum required (GR) rate resulted in a 99.8% decrease in exchangeable sodium percentages (ESP) compared to untreated composite sodic soil and a 1.31% reduction over the control (GYP 0% + FYM 0 ton ha-1). As a result, this leads to a decrease in soil electrical conductivity, exchangeable sodium (Ex. Na), and ESP values. The results were confirmed by the LSD test at 0.05. It is fascinating to see how different treatments can have such a significant impact on soil properties. The prediction models indicate that ESP's sodic soil treatment effect (R2 = 0.95) determines the optimal amendment level for displacing Ex. Na from the exchange site. The best estimator models for ESP using sodic soil treatment levels were ESP = 1.65-0.33 GYP for sole gypsum application and ESP = 1.65-0.33 GYP + 0.28 FYM for combined GYP and FYM application, respectively. Conclusion: The study found that combined GYP and FYM applications reduced ESP to less than 10% in agriculture, but further research is needed to determine their effectiveness at the field level.
英文关键词	sodic soil soil properties arid regions gypsum farmyard manure
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:001210664200001
WOS关键词	PHYSICAL-PROPERTIES ; CATION-EXCHANGE ; RECLAMATION ; ELEMENTS ; BIOCHAR ; GYPSUM ; TECHNOLOGY ; IRRIGATION ; ADSORPTION ; MANAGEMENT
WOS类目	Environmental Sciences ; Toxicology
WOS研究方向	Environmental Sciences & Ecology ; Toxicology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405807
推荐引用方式 GB/T 7714	Walche, Azmera,Haile, Wassie,Kiflu, Alemayehu,et al. Elucidating Amendment Resources for Reclaiming Efficacy of Sodic Soils around Abaya and Chamo Lakes, South Ethiopia Rift Valley[J],2024,12(4).
APA	Walche, Azmera,Haile, Wassie,Kiflu, Alemayehu,&Tsegaye, Dereje.(2024).Elucidating Amendment Resources for Reclaiming Efficacy of Sodic Soils around Abaya and Chamo Lakes, South Ethiopia Rift Valley.TOXICS,12(4).
MLA	Walche, Azmera,et al."Elucidating Amendment Resources for Reclaiming Efficacy of Sodic Soils around Abaya and Chamo Lakes, South Ethiopia Rift Valley".TOXICS 12.4(2024).